The Kingston Trio used to do a song – the title escapes me but I’m permitted that as an ORF – that ended “and I don’t like anyone very much.” The topic was nationality, which used to be a big deal among social engineers and liberal aristocrats who felt disenfranchised by nationalism, but equally well applies to other topics, like race and operating systems for computers.
Race is a hot topic right now because it is the current alternating, infinite renewal in political circles, a massive distraction from incipient bankruptcy which is itself the result of the financial irresponsibility of politicians. This alternation is inherent implicitly in charges of racism, because making a racist distinction is implicitly and inherently racist.
Never mind that the basic idea is vapid and meaningless. It is something dear to the hearts of bureaucrats and politicians because it gives them an absolute irrelevant taxonomy that they can use arbitrarily to distinguish ‘us’ from ‘them’, which is a valid and inherently human thing but outside of the arcana of anthropologists, managers, and psychologists, is unmentionable.
If you want to go see a discussion of race that isn’t polluted with anything more than social scientist political correctness clumsily done, go consult a basic general anthropology text. I use Haviland because the one I used back as a student at the campus of the Black Warrior got ashed in a house fire. The clumsiness is a matter of the books being written by academics for consumption by undergraduates who are 0.9944 bogs. And I got the text cheap on Alibris, used and paperback. One of the few boons of the racist college textbook pricing conspiracy is that it makes year old textbook cheap for folks who want to learn on their own.
The problem is that the real distinctions among humans are too manifold, complicated, and diverse to be used in common practice. A better argument can be made for distinguishing between people who cannot digest lactose as adults (from those who can) or people who naturally arise early from slumber (from those who rise late, whatever late and early means.) Or, and this is appropriate today, among those who use Linux or OS-X or are serfs of MegaHard (Windows.)
But organizations cannot continue if they cannot organize and the surest form of organizational solidarity is to have those who are members of organization be distanced in some observable dimension from those who are not. Hence those with different skin tint are more easily divided and organized than those who cannot digest milk or use OS-X. This is nothing more than a case of low hanging fruit, or in fancy organizational terms, minimization of resources on existence.
Unfortunately, there are not enough mountain tops for everyone, unless we already all live on mountain tops and then the species will be diminishing for obvious reasons. And the only comforting thing about that would be the absence of racism – on humans’ parts, at least.
 It’s racist because it distinguishes between students and non-students, which is as good a characteristic as skin tint or eyelid musculature. Never mind that students and non-students are the same species and inter-fertile. And it’s a conspiracy because it is being perpetrated by the folks who manufacture textbook to maximize their cash flow. And probably profit.
 If you think humans are racist, look at formicidae.